Fabricated blade anvil



' 1m30, 1931. GALLEN 1,812,188

v FABRAICATED BLADE ANVIL -Filed Jan. 19. l1929 I N VEN TOR.

` Patented .lune 3,.1'9,3 n

UNITED vsTAJrEs HOWARD G. ALLEN, or NIAGARA .gonigAsseNonrrom n. nrlrssrzofinf- 5- PANY,.INc., or NIAGARA FALLS, NEW Yoan, A onroaAfrrcNor Nnvvironirk .'.FABRICATED istAnif,Ai:vinv `g Appiicationmea .Tanuary 19, fieeafjA speri-a1' No. 333.643.v 'i 'i This invention relates to a blade anvil such.

- 5.blade anvil designed to materially reduce manufacturing costs, an anvil which will be of lighter lconstruction and thus more easily handled, while the anvil retains the requisitey strength.

In the accompanying drawings: Fig. 1 is a plan view of the anvil. Fig. 2 is a View taken on lline 2-2of Fig.

v 1 illustrating the anvil partly in side leleva-r tion and partly in section.

Y base or supported end of the anvilon line 3-3 of Fig. 1. L

Figs. 4, 5 and 6 are respectively sectional views taken on the correspondingsectional linesoFig. 1.

Fig. 7 is an `enlarged detail section. i i Fig. 84 is a view in illustration of a stitching machine with a bladeanVil associated therewith.

-' The use of a blade anvil is well understood,

and suffice to say that it isa relatively thin anvil designed to be inserted underneath flaps ofa fiber board container or the like which are to be stitched, and which, while being somewhatflexible, is sufficiently rigid to overcome stitching impact. n A

In Fig. 8 a conventional stitching machine is shown, having astitcher head 2, and the same is equipped with a lbladefanvil 3. v'This and machining processes wererequired to produce the same. Thus the manufacturing costs were unduly high, and moreover, the anvil was heavy. The anvil ofthis invention, however, was composed offmetal parts in the nature ofsheet metal. The top portion is shown at 5, and it is made of asheet metal member which 1s arcuate 1n cross section, and which tapers 1n a progresslve manner from v f forming aconnection `z-The base'orsupported "end ofthe! anvil,

Fig. 3 is a sectional view takenthrough the blade anvil has a base portion' by means of.

JeY0 end advantageously' `may ybe, substantially at -as shown at 6,'k and this member 6' tapers :ini a* manner which correspondsto the taperingof r the uppermer'nb'er. 5; These two members are fitted' together as illustrated f in. Figs. 4f to` f 7` bottom portion is made of sheetmetalwhichf l i inclusive, inV that theyareff'welded around their edges vin any, suitable mamier, thus however, preferably.. is supplied with an intermediateblock vto give thek anvil 'added strength,and this blockis .referenced 8.A 'Ihe members 51 and 6 areappropriatelyshapedfto l receive'. this block 'member and they are' also fwelded together at @their edges. The block?y may be `equippedwithone or more apertures 9', andthe members 5'and 6 haveaperture's"`r whichcorrespondthereto. fl v 1 y L @Tfhe stitches farefdriven againstvthe outermost or small end-oi the anvil and "for this purpose it is desirable'to equip 'thesamewithg ahardened steel block or ranvil proper against which the legs 'of V,the stitch are thrownto bey cl'enchedfover. w 'Accordingly,` an anvil vblock y 10 is provided. The block maybe" secured i in place bythe provision'of a lsuitable aperture'in lthevpart 5 Vfor; receiving the'block and* the block may restupon theflowerf-part 16.

Thesame'may be held placeby a suitable screwllwn Thus the anvil is in general otthollowcon-4 structiomand'while it is madeof sheet metall 4 parts,- itsV overall dimensionsare 'such asl to' give it the lrequisitc-: strength. T At the. Vsame timebfca be manufactured; and furnished a to the trade cheaperfthan'jc'a Aan anvil,*formedT yfrom a's'oli'd`of massmaterialv andv furthferfj morel )it isrnuch easier to 4handle duel toz'its lightness.v .j

The lower member I:6 hasibeendescribedas f beingjsubsta'ntially flat and even claimedf as 1 latin somev of the claims,E appended hereto. However, itis thought desirable to slightly curve the lower section, particularly by an appreciable upward direction of extent of the edges 6a. Thus the greatest dimension of.k

the anvil is disposed at a point between its upper and lower surfaces. Its edgesthus do A' not provide a sharp corner flush with the bottom of the anvil. After the parts are welded together, the corner may be ground off in any suitable manner.

Claims:

1. A fabricated blade anvil comprising upper and lower members both of which are of sheet metal construction and one of which is arcuate in cross section, said members being fitted together with their edges in close proximity, a weld connection extending around the edges, said members both uniformly tapering substantially from end to end, thus to form a relatively small end and a relatively large end, and a filler block disposed within the hollow anvil at the large end for securing purposes.

2. A blade anvil comprising upper and lower members, one of which is arcuate in cross section, fitted together and welded around their edges to form a hollow anvil, one of said members being provided with an opening, and an impact receiving member disposed in said opening.

3. A blade anvil comprising upper and lower members, one of which is arcuate in cross section, fitted together and welded around their edges to form a hollow anvil, one of said members being provided with an opening, and an impact receiving member disposed in said opening and abutting against the other of said members.

4. A blade anvil comprising upper and lower members, one of which is arcuate in cross section, fitted together and welded around their edges to form a hollow anvil, one of said members being provided with an opening, an impact receiving member disposed in said opening and butting against the other of said members, and means for holding this impact receiving member in place.

5. A blade anvil for clinching stitches or the like comprising, metal members 0f sheet formation secured together to form an anvil hollow in cross section and of a nature so as to flex somewhat under impact but sufficiently rigid to clinch the legs of a stitch thrown against it.

6. An anvil for the purpose of clinching the legs of stitches or the like, comprising a pair of metal members of sheet formation secured together at their edges and shaped to .provide an anvil of hollow formation hav= ing a degree of iiexibility so as to give way under impact and being suliiciently rigid to clinch the legs of a stitch.

In testimony whereof I aliiX my signature.

HOWARD G. ALLEN. 

